VULNERABILITY INTELLIGENCE

CVE-2021-27431

CVSS score7.3 HIGH
EPSS probability1.15%
CISA KEVNot currently listed
Published2022-05-03
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Description

ARM CMSIS RTOS2 versions prior to 2.1.3 are vulnerable to integer wrap-around inosRtxMemoryAlloc (local malloc equivalent) function, which can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or injected code execution.

Weakness classification

  • ics-cert@hq.dhs.gov: CWE-190

Primary references